What is the main purpose of filling electric bulbs with nitrogen and argon gases?

Subject: General Awareness | Topic: Science | Difficulty: MEDIUM

Options

1. (A) To increase the brightness of the bulb
2. (B) To make the bulb transparent
3. (C) To cool the filament rapidly
4. (D) To increase the life of the filament

Verified Answer

Option (D): To increase the life of the filament

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